287 lines
10 KiB
Java
287 lines
10 KiB
Java
package org.bouncycastle.math.ec.custom.sec;
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import io.flutter.embedding.android.KeyboardMap;
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import java.math.BigInteger;
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import org.bouncycastle.math.raw.Interleave;
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import org.bouncycastle.math.raw.Nat256;
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/* loaded from: classes6.dex */
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public class SecT239Field {
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private static final long M47 = 140737488355327L;
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private static final long M60 = 1152921504606846975L;
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public static int trace(long[] jArr) {
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return ((int) ((jArr[0] ^ (jArr[1] >>> 17)) ^ (jArr[2] >>> 34))) & 1;
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}
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public static void squareN(long[] jArr, int i, long[] jArr2) {
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long[] createExt64 = Nat256.createExt64();
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implSquare(jArr, createExt64);
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while (true) {
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reduce(createExt64, jArr2);
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i--;
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if (i <= 0) {
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return;
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} else {
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implSquare(jArr2, createExt64);
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}
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}
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}
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public static void squareAddToExt(long[] jArr, long[] jArr2) {
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long[] createExt64 = Nat256.createExt64();
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implSquare(jArr, createExt64);
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addExt(jArr2, createExt64, jArr2);
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}
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public static void square(long[] jArr, long[] jArr2) {
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long[] createExt64 = Nat256.createExt64();
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implSquare(jArr, createExt64);
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reduce(createExt64, jArr2);
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}
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public static void sqrt(long[] jArr, long[] jArr2) {
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long unshuffle = Interleave.unshuffle(jArr[0]);
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long unshuffle2 = Interleave.unshuffle(jArr[1]);
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long j = (unshuffle >>> 32) | (unshuffle2 & (-4294967296L));
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int i = 2;
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long unshuffle3 = Interleave.unshuffle(jArr[2]);
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long unshuffle4 = Interleave.unshuffle(jArr[3]);
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long j2 = ((-4294967296L) & unshuffle4) | (unshuffle3 >>> 32);
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long j3 = j2 >>> 49;
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long j4 = (j >>> 49) | (j2 << 15);
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long j5 = j2 ^ (j << 15);
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long[] createExt64 = Nat256.createExt64();
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int[] iArr = {39, 120};
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int i2 = 0;
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while (i2 < i) {
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int i3 = iArr[i2];
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int i4 = i3 >>> 6;
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int i5 = i3 & 63;
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createExt64[i4] = createExt64[i4] ^ (j << i5);
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int i6 = i4 + 1;
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int[] iArr2 = iArr;
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int i7 = -i5;
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createExt64[i6] = createExt64[i6] ^ ((j5 << i5) | (j >>> i7));
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int i8 = i4 + 2;
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createExt64[i8] = createExt64[i8] ^ ((j4 << i5) | (j5 >>> i7));
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int i9 = i4 + 3;
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createExt64[i9] = createExt64[i9] ^ ((j3 << i5) | (j4 >>> i7));
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int i10 = i4 + 4;
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createExt64[i10] = createExt64[i10] ^ (j3 >>> i7);
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i2++;
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i = 2;
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iArr = iArr2;
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}
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reduce(createExt64, jArr2);
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jArr2[0] = ((unshuffle & KeyboardMap.kValueMask) | (unshuffle2 << 32)) ^ jArr2[0];
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jArr2[1] = jArr2[1] ^ ((unshuffle3 & KeyboardMap.kValueMask) | (unshuffle4 << 32));
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}
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public static void reduce17(long[] jArr, int i) {
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int i2 = i + 3;
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long j = jArr[i2];
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long j2 = j >>> 47;
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jArr[i] = jArr[i] ^ j2;
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int i3 = i + 2;
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jArr[i3] = (j2 << 30) ^ jArr[i3];
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jArr[i2] = j & M47;
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}
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public static void reduce(long[] jArr, long[] jArr2) {
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long j = jArr[0];
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long j2 = jArr[1];
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long j3 = jArr[2];
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long j4 = jArr[3];
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long j5 = jArr[4];
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long j6 = jArr[5];
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long j7 = jArr[6];
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long j8 = jArr[7];
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long j9 = j7 ^ (j8 >>> 17);
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long j10 = (j6 ^ (j8 << 47)) ^ (j9 >>> 17);
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long j11 = ((j5 ^ (j8 >>> 47)) ^ (j9 << 47)) ^ (j10 >>> 17);
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long j12 = (((j4 ^ (j8 << 17)) ^ (j9 >>> 47)) ^ (j10 << 47)) ^ (j11 >>> 17);
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long j13 = j12 >>> 47;
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jArr2[0] = (j ^ (j11 << 17)) ^ j13;
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jArr2[1] = ((j10 << 17) ^ j2) ^ (j11 >>> 47);
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jArr2[2] = (j13 << 30) ^ ((((j9 << 17) ^ j3) ^ (j10 >>> 47)) ^ (j11 << 47));
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jArr2[3] = M47 & j12;
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}
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public static void multiplyAddToExt(long[] jArr, long[] jArr2, long[] jArr3) {
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long[] createExt64 = Nat256.createExt64();
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implMultiply(jArr, jArr2, createExt64);
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addExt(jArr3, createExt64, jArr3);
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}
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public static void multiply(long[] jArr, long[] jArr2, long[] jArr3) {
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long[] createExt64 = Nat256.createExt64();
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implMultiply(jArr, jArr2, createExt64);
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reduce(createExt64, jArr3);
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}
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public static void invert(long[] jArr, long[] jArr2) {
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if (Nat256.isZero64(jArr)) {
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throw new IllegalStateException();
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}
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long[] create64 = Nat256.create64();
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long[] create642 = Nat256.create64();
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square(jArr, create64);
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multiply(create64, jArr, create64);
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square(create64, create64);
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multiply(create64, jArr, create64);
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squareN(create64, 3, create642);
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multiply(create642, create64, create642);
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square(create642, create642);
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multiply(create642, jArr, create642);
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squareN(create642, 7, create64);
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multiply(create64, create642, create64);
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squareN(create64, 14, create642);
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multiply(create642, create64, create642);
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square(create642, create642);
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multiply(create642, jArr, create642);
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squareN(create642, 29, create64);
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multiply(create64, create642, create64);
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square(create64, create64);
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multiply(create64, jArr, create64);
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squareN(create64, 59, create642);
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multiply(create642, create64, create642);
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square(create642, create642);
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multiply(create642, jArr, create642);
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squareN(create642, 119, create64);
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multiply(create64, create642, create64);
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square(create64, jArr2);
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}
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protected static void implSquare(long[] jArr, long[] jArr2) {
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Interleave.expand64To128(jArr[0], jArr2, 0);
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Interleave.expand64To128(jArr[1], jArr2, 2);
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Interleave.expand64To128(jArr[2], jArr2, 4);
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jArr2[6] = Interleave.expand32to64((int) jArr[3]);
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jArr2[7] = Interleave.expand16to32((int) (r0 >>> 32)) & KeyboardMap.kValueMask;
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}
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protected static void implMulwAcc(long j, long j2, long[] jArr, int i) {
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long j3 = j2 << 1;
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long j4 = j3 ^ j2;
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int i2 = 3;
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long j5 = j2 << 2;
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long j6 = j4 << 1;
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long[] jArr2 = {0, j2, j3, j4, j5, j5 ^ j2, j6, j6 ^ j2};
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int i3 = (int) j;
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long j7 = (jArr2[(i3 >>> 3) & 7] << 3) ^ jArr2[i3 & 7];
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long j8 = 0;
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int i4 = 54;
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while (true) {
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int i5 = (int) (j >>> i4);
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long j9 = jArr2[i5 & 7] ^ (jArr2[(i5 >>> i2) & 7] << i2);
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j7 ^= j9 << i4;
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j8 ^= j9 >>> (-i4);
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i4 -= 6;
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if (i4 <= 0) {
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jArr[i] = jArr[i] ^ (M60 & j7);
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int i6 = i + 1;
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jArr[i6] = ((((((j & 585610922974906400L) & ((j2 << 4) >> 63)) >>> 5) ^ j8) << 4) ^ (j7 >>> 60)) ^ jArr[i6];
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return;
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}
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i2 = 3;
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}
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}
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protected static void implMultiply(long[] jArr, long[] jArr2, long[] jArr3) {
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long[] jArr4 = new long[4];
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long[] jArr5 = new long[4];
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implExpand(jArr, jArr4);
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implExpand(jArr2, jArr5);
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implMulwAcc(jArr4[0], jArr5[0], jArr3, 0);
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implMulwAcc(jArr4[1], jArr5[1], jArr3, 1);
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implMulwAcc(jArr4[2], jArr5[2], jArr3, 2);
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implMulwAcc(jArr4[3], jArr5[3], jArr3, 3);
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for (int i = 5; i > 0; i--) {
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jArr3[i] = jArr3[i] ^ jArr3[i - 1];
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}
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implMulwAcc(jArr4[0] ^ jArr4[1], jArr5[0] ^ jArr5[1], jArr3, 1);
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implMulwAcc(jArr4[2] ^ jArr4[3], jArr5[2] ^ jArr5[3], jArr3, 3);
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for (int i2 = 7; i2 > 1; i2--) {
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jArr3[i2] = jArr3[i2] ^ jArr3[i2 - 2];
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}
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long j = jArr4[0] ^ jArr4[2];
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long j2 = jArr4[1] ^ jArr4[3];
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long j3 = jArr5[0] ^ jArr5[2];
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long j4 = jArr5[1] ^ jArr5[3];
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implMulwAcc(j ^ j2, j3 ^ j4, jArr3, 3);
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long[] jArr6 = new long[3];
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implMulwAcc(j, j3, jArr6, 0);
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implMulwAcc(j2, j4, jArr6, 1);
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long j5 = jArr6[0];
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long j6 = jArr6[1];
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long j7 = jArr6[2];
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jArr3[2] = jArr3[2] ^ j5;
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jArr3[3] = (j5 ^ j6) ^ jArr3[3];
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jArr3[4] = jArr3[4] ^ (j7 ^ j6);
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jArr3[5] = jArr3[5] ^ j7;
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implCompactExt(jArr3);
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}
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protected static void implExpand(long[] jArr, long[] jArr2) {
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long j = jArr[0];
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long j2 = jArr[1];
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long j3 = jArr[2];
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long j4 = jArr[3];
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jArr2[0] = j & M60;
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jArr2[1] = ((j >>> 60) ^ (j2 << 4)) & M60;
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jArr2[2] = ((j2 >>> 56) ^ (j3 << 8)) & M60;
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jArr2[3] = (j3 >>> 52) ^ (j4 << 12);
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}
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protected static void implCompactExt(long[] jArr) {
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long j = jArr[0];
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long j2 = jArr[1];
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long j3 = jArr[2];
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long j4 = jArr[3];
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long j5 = jArr[4];
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long j6 = jArr[5];
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long j7 = jArr[6];
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long j8 = jArr[7];
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jArr[0] = j ^ (j2 << 60);
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jArr[1] = (j2 >>> 4) ^ (j3 << 56);
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jArr[2] = (j3 >>> 8) ^ (j4 << 52);
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jArr[3] = (j4 >>> 12) ^ (j5 << 48);
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jArr[4] = (j5 >>> 16) ^ (j6 << 44);
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jArr[5] = (j6 >>> 20) ^ (j7 << 40);
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jArr[6] = (j7 >>> 24) ^ (j8 << 36);
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jArr[7] = j8 >>> 28;
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}
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public static long[] fromBigInteger(BigInteger bigInteger) {
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long[] fromBigInteger64 = Nat256.fromBigInteger64(bigInteger);
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reduce17(fromBigInteger64, 0);
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return fromBigInteger64;
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}
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public static void addOne(long[] jArr, long[] jArr2) {
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jArr2[0] = jArr[0] ^ 1;
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jArr2[1] = jArr[1];
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jArr2[2] = jArr[2];
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jArr2[3] = jArr[3];
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}
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public static void addExt(long[] jArr, long[] jArr2, long[] jArr3) {
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jArr3[0] = jArr[0] ^ jArr2[0];
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jArr3[1] = jArr[1] ^ jArr2[1];
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jArr3[2] = jArr[2] ^ jArr2[2];
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jArr3[3] = jArr[3] ^ jArr2[3];
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jArr3[4] = jArr[4] ^ jArr2[4];
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jArr3[5] = jArr[5] ^ jArr2[5];
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jArr3[6] = jArr[6] ^ jArr2[6];
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jArr3[7] = jArr2[7] ^ jArr[7];
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}
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public static void add(long[] jArr, long[] jArr2, long[] jArr3) {
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jArr3[0] = jArr[0] ^ jArr2[0];
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jArr3[1] = jArr[1] ^ jArr2[1];
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jArr3[2] = jArr[2] ^ jArr2[2];
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jArr3[3] = jArr2[3] ^ jArr[3];
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}
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}
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